Last year I read a pretty good sf short story about deep-sea polymetallic nodule mining and went out and bought $34 of warrants on TMC, now worth $1.69. Ah well, I guess reading sf is not due diligence.

I cannot for the life of me remember what the story was though -- I don't think it was Arula Ratnakar's "Submergence". Hmmm. Maybe it was "The Little Shepherdess"?